I've had a few goes at listening to my RSP2 while recording and it continually 'chuffs'. By this I mean the audio cuts in and out at a rate of about 2Hz (twice per second). I'm recording at full spectrum bandwidth but only at a 2MHz rate decimated by 8 giving me an effective RF bandwidth of 200kHz. This occurs in HDSDRPlay and SDRUno 1.12.

Increasing the sampling rate only makes the chuffing worse. My PC is an Intel i7860 running at 2.8GHz and with a full 2MHz sampling rate the CPU only consumes about 10 to 15% and that's with Google Chrome and PlanePlotter both running.